]> git.tdb.fi Git - r2c2.git/blobdiff - source/libmarklin/route.cpp
Add TrackIter and BlockIter classes
[r2c2.git] / source / libmarklin / route.cpp
index ace8d0b950812c56a22e23a0ba381f4d389b9f7b..6dc7ae51e13350efe01269c06c199fde829675f8 100644 (file)
@@ -10,6 +10,7 @@ Distributed under the GPL
 #include "layout.h"
 #include "route.h"
 #include "track.h"
+#include "trackiter.h"
 #include "tracktype.h"
 
 using namespace std;
@@ -19,11 +20,11 @@ namespace {
 
 using namespace Marklin;
 
-typedef std::pair<const Track *, unsigned> Key;
+typedef std::pair<Track *, unsigned> Key;
 
 struct Node
 {
-       const Track *track;
+       Track *track;
        unsigned ep;
        Node *prev;
        float dist;
@@ -32,11 +33,11 @@ struct Node
                track(0), ep(0), prev(0), dist(0)
        { }
 
-       Node(const Track &t, unsigned e):
+       Node(Track &t, unsigned e):
                track(&t), ep(e), prev(0), dist(0)
        { }
 
-       Node(const Track &t, unsigned e, Node &r, float d):
+       Node(Track &t, unsigned e, Node &r, float d):
                track(&t), ep(e), prev(&r), dist(prev->dist+d)
        { }
 
@@ -46,24 +47,24 @@ struct Node
 
 struct TrackMatch
 {
-       const Track &track;
+       Track &track;
 
-       TrackMatch(const Track &t): track(t) { }
+       TrackMatch(Track &t): track(t) { }
 
-       bool operator()(const Track &t) const { return &t==&track; }
+       bool operator()(Track &t) const { return &t==&track; }
 };
 
-struct TrackInRoute
+struct TrackInSet
 {
-       const Route &route;
+       const set<Track *> &tracks;
 
-       TrackInRoute(const Route &r): route(r) { }
+       TrackInSet(const set<Track *> &t): tracks(t) { }
 
-       bool operator()(const Track &t) const { return route.get_tracks().count(&t); }
+       bool operator()(Track &t) const { return tracks.count(&t); }
 };
 
 template<typename Pred>
-list<const Track *> dijkstra(const Track &from, unsigned ep, const Pred &goal)
+list<Track *> dijkstra(Track &from, unsigned ep, const Pred &goal)
 {
        map<Key, Node> track_nodes;
        priority_queue<Node> nodes;
@@ -112,24 +113,25 @@ list<const Track *> dijkstra(const Track &from, unsigned ep, const Pred &goal)
        if(!final)
                throw InvalidParameterValue("Could not find a route");
 
-       list<const Track *> result;
+       list<Track *> result;
        for(Node *node=final; node; node=node->prev)
                result.push_front(node->track);
 
        return result;
 }
 
-unsigned count = 0;
-
 template<typename Pred>
-Route *create_route(const Track &from, unsigned ep, const Pred &goal)
+Route *create_route(Track &from, unsigned ep, const Pred &goal)
 {
-       list<const Track *> tracks = dijkstra(from, ep, goal);
+       list<Track *> tracks = dijkstra(from, ep, goal);
 
-       Route *route = new Route(from.get_layout(), format("-%d-", ++count));
-       for(list<const Track *>::iterator i=tracks.begin(); i!=tracks.end(); ++i)
+       Route *route = new Route(from.get_layout());
+       for(list<Track *>::iterator i=tracks.begin(); i!=tracks.end(); ++i)
                route->add_track(**i);
 
+       route->set_name("Pathfinder");
+       route->set_temporary(true);
+
        return route;
 }
 
@@ -138,9 +140,9 @@ Route *create_route(const Track &from, unsigned ep, const Pred &goal)
 
 namespace Marklin {
 
-Route::Route(Layout &l, const string &n):
+Route::Route(Layout &l):
        layout(l),
-       name(n)
+       temporary(false)
 {
        layout.add_route(*this);
        layout.signal_track_removed.connect(sigc::mem_fun(this, &Route::track_removed));
@@ -151,71 +153,34 @@ Route::~Route()
        layout.remove_route(*this);
 }
 
-int Route::get_turnout(unsigned id) const
+void Route::set_name(const string &n)
 {
-       map<unsigned, int>::const_iterator i = turnouts.find(id);
-       if(i!=turnouts.end())
-               return i->second;
-       return -1;
+       name = n;
+       signal_name_changed.emit(name);
 }
 
-void Route::add_track(const Track &trk)
+void Route::set_temporary(bool t)
 {
-       if(tracks.count(&trk))
-               return;
-
-       if(!tracks.empty())
-       {
-               unsigned valid = check_validity(trk);
-               if(!(valid&1))
-                       throw Exception("Not linked to existing tracks");
-               else if(!(valid&2))
-                       throw Exception("Branching routes not allowed");
-               else if(!(valid&4))
-                       throw Exception("Route must be smooth");
-       }
-
-       tracks.insert(&trk);
-       update_turnouts();
+       temporary = t;
 }
 
-void Route::add_tracks(const set<const Track *> &trks)
+void Route::set_turnout(unsigned addr, unsigned path)
 {
-       set<const Track *> pending;
-       for(set<const Track *>::const_iterator i=trks.begin(); i!=trks.end(); ++i)
-               if(!tracks.count(*i))
-                       pending.insert(*i);
-
-       while(!pending.empty())
-       {
-               bool found = false;
-               for(set<const Track *>::const_iterator i=pending.begin(); i!=pending.end(); ++i)
-                       if(tracks.empty() || check_validity(**i)==7)
-                       {
-                               tracks.insert(*i);
-                               pending.erase(*i);
-                               found = true;
-                               break;
-                       }
-
-               if(!found)
-                       throw Exception("Could not add all tracks to route");
-       }
-
-       update_turnouts();
-}
-
-void Route::save(list<DataFile::Statement> &st) const
-{
-       for(map<unsigned, int>::const_iterator i=turnouts.begin(); i!=turnouts.end(); ++i)
-               st.push_back((DataFile::Statement("turnout"), i->first, i->second));
+       if(!addr)
+               throw InvalidParameterValue("Invalid turnout address");
+       map<unsigned, int>::iterator i = turnouts.find(addr);
+       if(i==turnouts.end())
+               throw KeyError("Turnout is not in this route");
+       if(i->second>=0 && path!=static_cast<unsigned>(i->second))
+               throw InvalidState("Setting conflicts with route");
+       i->second = path;
 }
 
 void Route::update_turnouts()
 {
        set<unsigned> found;
-       for(set<const Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
-               if(unsigned tid=(*i)->get_turnout_id())
+       for(set<Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
+               if(unsigned tid = (*i)->get_turnout_id())
                {
                        found.insert(tid);
 
@@ -229,7 +194,7 @@ void Route::update_turnouts()
                                if(!tracks.count(links[j]))
                                        continue;
 
-                               if(unsigned tid2=links[j]->get_turnout_id())
+                               if(unsigned tid2 = links[j]->get_turnout_id())
                                {
                                        const Endpoint &ep = links[j]->get_type().get_endpoints()[links[j]->get_endpoint_by_link(**i)];
                                        int p = get_turnout(tid2);
@@ -265,10 +230,103 @@ void Route::update_turnouts()
        }
 }
 
-unsigned Route::check_validity(const Track &trk) const
+int Route::get_turnout(unsigned id) const
+{
+       map<unsigned, int>::const_iterator i = turnouts.find(id);
+       if(i!=turnouts.end())
+               return i->second;
+       return -1;
+}
+
+void Route::add_track(Track &trk)
+{
+       if(tracks.count(&trk))
+               return;
+
+       if(!tracks.empty())
+       {
+               unsigned valid = check_validity(trk);
+               if(!(valid&1))
+                       throw Exception("Not linked to existing tracks");
+               else if(!(valid&2))
+                       throw Exception("Branching routes not allowed");
+               else if(!(valid&4))
+                       throw Exception("Route must be smooth");
+       }
+
+       tracks.insert(&trk);
+       update_turnouts();
+}
+
+void Route::add_tracks(const set<Track *> &trks)
+{
+       set<Track *> pending;
+       for(set<Track *>::const_iterator i=trks.begin(); i!=trks.end(); ++i)
+               if(!tracks.count(*i))
+                       pending.insert(*i);
+
+       while(!pending.empty())
+       {
+               bool found = false;
+               for(set<Track *>::const_iterator i=pending.begin(); i!=pending.end(); ++i)
+                       if(tracks.empty() || check_validity(**i)==7)
+                       {
+                               tracks.insert(*i);
+                               pending.erase(*i);
+                               found = true;
+                               break;
+                       }
+
+               if(!found)
+                       throw Exception("Could not add all tracks to route");
+       }
+
+       update_turnouts();
+}
+
+void Route::add_track_chain(Track &start, unsigned ep, const TurnoutMap &trnts)
+{
+       TrackIter iter(&start, ep);
+       while(iter)
+       {
+               if(iter->get_type().is_dead_end())
+                       break;
+
+               if(has_track(*iter))
+                       break;
+
+               int path = 0;
+               if(iter->get_turnout_id())
+               {
+                       TurnoutMap::const_iterator i = trnts.find(iter->get_turnout_id());
+                       if(i==trnts.end())
+                               break;
+
+                       path = i->second;
+               }
+
+               add_track(*iter);
+
+               iter = iter.next(path);
+       }
+}
+
+bool Route::has_track(Track &t) const
+{
+       return tracks.count(&t);
+}
+
+void Route::save(list<DataFile::Statement> &st) const
+{
+       st.push_back((DataFile::Statement("name"), name));
+       for(map<unsigned, int>::const_iterator i=turnouts.begin(); i!=turnouts.end(); ++i)
+               st.push_back((DataFile::Statement("turnout"), i->first, i->second));
+}
+
+unsigned Route::check_validity(Track &trk) const
 {
        unsigned result = 4;
-       for(set<const Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
+       for(set<Track *>::const_iterator i=tracks.begin(); i!=tracks.end(); ++i)
        {
                int epi=(*i)->get_endpoint_by_link(trk);
                if(epi>=0)
@@ -322,26 +380,62 @@ void Route::track_removed(Track &t)
        tracks.erase(&t);
 }
 
-Route *Route::find(const Track &from, unsigned ep, const Track &to)
+Route *Route::find(Track &from, unsigned ep, Track &to)
 {
        return create_route(from, ep, TrackMatch(to));
 }
 
-Route *Route::find(const Track &from, unsigned ep, const Route &to)
+Route *Route::find(Track &from, unsigned ep, const Route &to)
 {
-       return create_route(from, ep, TrackInRoute(to));
+       return create_route(from, ep, TrackInSet(to.get_tracks()));
+}
+
+Route *Route::find(Track &from, unsigned ep, const set<Track *> &to)
+{
+       return create_route(from, ep, TrackInSet(to));
 }
 
 
 Route::Loader::Loader(Route &r):
        DataFile::BasicLoader<Route>(r)
 {
+       add("name",    &Route::name);
        add("turnout", &Loader::turnout);
 }
 
+void Route::Loader::finish()
+{
+       const set<Track *> &ltracks = obj.layout.get_tracks();
+       for(set<Track *>::const_iterator i=ltracks.begin(); i!=ltracks.end(); ++i)
+       {
+               unsigned tid = (*i)->get_turnout_id();
+               if(!tid)
+                       continue;
+
+               TurnoutMap::iterator j = turnouts.find(tid);
+               if(j==turnouts.end())
+                       continue;
+
+               unsigned path_mask = 1<<j->second;
+               const vector<Endpoint> &eps = (*i)->get_type().get_endpoints();
+               for(unsigned k=0; k<eps.size(); ++k)
+                       if(eps[k].paths&path_mask)
+                       {
+                               Track *link = (*i)->get_link(k);
+                               if(!obj.tracks.count(link))
+                                       obj.add_track_chain(*link, link->get_endpoint_by_link(**i), turnouts);
+                               if(!obj.tracks.count(*i))
+                                       obj.add_track_chain(**i, k, turnouts);
+                               break;
+                       }
+
+               break;
+       }
+}
+
 void Route::Loader::turnout(unsigned id, unsigned path)
 {
-       obj.turnouts[id] = path;
+       turnouts[id] = path;
 }
 
 } // namespace Marklin